package com.hmdp.service.impl;

import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.hmdp.entity.Shop;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {

    private final StringRedisTemplate stringRedisTemplate;

    public ShopTypeServiceImpl(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }

    @Override
    public List<ShopType> queryList() {
        String key = "cache:shop:type";
        String shopListJson = stringRedisTemplate.opsForValue().get(key);
        if (StrUtil.isNotBlank(shopListJson)) {
            return JSONUtil.toList(shopListJson,ShopType.class);
        }
        List<ShopType> shopTypeList = query().orderByAsc("sort").list();
        stringRedisTemplate.opsForValue().set(key,JSONUtil.toJsonStr(shopTypeList));
        return shopTypeList;
    }
}
